A model trained on large text corpora to generate and transform language.
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AI Glossary
Large Language Model (LLM)
A model trained on large text corpora to generate and transform language.
Simple explanation
A large language model is software trained on lots of text so it can write, summarize, and answer questions in natural language.
Technical explanation
LLMs are neural sequence models (often transformers) trained with next-token prediction on large corpora, then optionally aligned with instruction/fine-tuning and preference optimization.
Examples
- Drafting an email from bullet points
- Summarizing a 40-page PDF
- Explaining code in plain language
FAQs
Is an LLM the same as ChatGPT?
ChatGPT is a product that uses LLMs. “LLM” is the underlying model class.
Related terms
Retrieval-Augmented Generation (RAG)
A pattern that grounds model answers in retrieved documents or knowledge bases.
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